________ deposits are found in streams where running water has mechanically concentrated heavy sediment such as gold.
A. Placer
B. Pebble
C. Lag
D. Granular
E. Agglomerated
Answer: A
Environmental & Atmospheric Sciences
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The prevailing model for the formation of greenstone beds in the Archean is ____
A)igneous intrusion into a sandstone bed B)the closing of a back-arc basin C)a Wilson cycle D)mid-continental rifting E)ultramafic lava flows
Environmental & Atmospheric Sciences
Coulomb's law has the same form as
A. Newton's second law. B. Newton's law of gravity. C. Ohm's law. D. none of the above
Environmental & Atmospheric Sciences
Photosynthesis requires both carbon dioxide and water, but could not occur without the input of____________ ______________
Fill in the blanks with correct word
Environmental & Atmospheric Sciences
Most of Earth's fresh water is in
A) ice caps, glaciers, and groundwater. B) groundwater and rivers. C) lakes and swamps. D) rivers and streams. E) oceans.
Environmental & Atmospheric Sciences